var str='f:\\abc\\pic\\f.jpg';

  var temp=str;

var ob={name : 'tom',
        path : 'f:/abc/pic/f.jpg'}
console.log(temp);
jOb=JSON.stringify(ob);
console.log(ob);
console.log(jOb);
 temp=eval("("+jOb+")");
 
   console.log(temp);
   console.log(temp.name);
 console.log(jOb==temp);
 var templa={"name":"jily"}
 
 console.log(templa);
 console.log(templa.name);
 
 console.log(str.length);

